This image of an aurora over Maine was made Astronomy Picture of the day on September 17, 2014. These auroras are due to the recent activity of sunspot region 2158, a region of the sun that has been active in releasing plasma ejections and flares into space in recent accounting. Most notably, 2 major coronal mass ejections (CME's) hit the Earth's magnetosphere, creating the most intense geomagnetic storm this year. Auroras were seen as far south as Wisconsin, where, without a geomagnetic storm, they are normally only seen in far northern regions closer to the poles. These were rays and sheets of multicolored auroras over Acadia National Park in Maine.
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